matricides

/M AE1 T R AH0 S AY0 D Z/
noun
  1. 1

    The killing of one's mother.

    โ€œGerald was imprisoned for matricide: he strangled his mother.โ€

  2. 2

    A person who kills his or her mother.

    โ€œNancy was a matricide; it happened four years ago.โ€

Source: https://en.wiktionary.org/wiki/matricide, https://en.wiktionary.org/wiki/matricides